Search Results
Showing results 1 to 20 of 31
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-623.png?itok=nKVjmrlF)
Drop Shape
Source Institutions
In this activity, learners get a closer look at the shape of a drop of water and a drop of oil. Learners first drip water onto wax paper and examine the shape of separate drops from a side view.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-330.jpg?itok=ItPXDz8V)
Changing the Density of a Liquid: Adding Salt
Source Institutions
Learners see that a carrot slice sinks in fresh water and floats in saltwater.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-123.jpg?itok=zRRMGepL)
How Much Water is in that Cloud?
Source Institutions
In this activity, learners working in pairs saturate a cotton ball using water drops from an eyedropper to demonstrate the high water capacity of clouds.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-247.jpg?itok=Ll6ENSj6)
Colors Collide or Combine
Source Institutions
Learners place multiple M&M's in a plate of water to watch what happens as the candies dissolve.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-972.png?itok=MsgPm-Ze)
The Liquid Rainbow
Source Institutions
Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.
What's So Special about Water: Absorption
Source Institutions
In this activity about water's cohesive and adhesive properties and why water molecules are attracted to each other, learners test if objects repel or absorb water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-783.jpg?itok=CrxoOyj1)
Water Underground
Source Institutions
Many people get water from a source deep underground, called groundwater.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-032.png?itok=b0aWIjmk)
Water: Clearly Unique!
Source Institutions
In this activity on page 4 of the PDF (Water in Our World), learners conduct some quick and easy tests to determine the differences between water and other liquids that look very similar to water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-375.png?itok=qpgheNKq)
What Causes Wind?
Source Institutions
In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-841.png?itok=w0wZGZ6Y)
Atoms and Matter (K-2)
Source Institutions
In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-701.jpg?itok=Ilknm-xN)
Float Your Boat
Source Institutions
In this physics activity, learners will explore buoyancy.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-358.jpg?itok=vlj9xW7P)
Design a Submarine
Source Institutions
Learners act as engineers and design mini submarines that move in the water like real submarines.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-676.jpg?itok=uDzzQpC1)
Indicating Electrolysis
Source Institutions
Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-582.jpg?itok=Wfj5iTbO)
Penny Drop
Source Institutions
In this quick activity about the properties of water (page 1 of PDF under SciGirls Activity: Malformed Frogs), learners will use an eyedropper to slowly place one drop of water at a time onto a penny,
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-155.png?itok=QyrTOqS_)
Cool It!
Source Institutions
In this fun hands-on activity, learners use simple materials to investigate evaporation. How can the evaporation of water on a hot day be used to cool an object? Find out the experimental way!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-394.gif?itok=3SCajlHq)
What's So Special about Water: Solubility and Density
Source Institutions
In this activity about water solubility and density, learners use critical thinking skills to determine why water can dissolve some things and not others.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-287.png?itok=5miT8Wqm)
Liquid Layers
Source Institutions
Experiment with liquids of different densities and create liquid layers. For example, oil and water have different densities: oil floats on water because it is less dense than water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-393.gif?itok=It-4wsXy)
What's So Special about Water: Surface Tension
Source Institutions
In this three-part activity, learners play a game and conduct two simple experiments to explore water and surface tension. Learners will have fun discovering how water "sticks" together.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-316.png?itok=qy1SHWoi)
Drops on a Penny
Source Institutions
In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-446.jpg?itok=hdWLS4JH)
Sunny Day Painting
Source Institutions
In this activity, learners explore properties of water and watch evaporation happen by "painting" with water in the sun.